KR20080078332A - Air-conditioning system - Google Patents

Air-conditioning system Download PDF

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Publication number
KR20080078332A
KR20080078332A KR1020070018295A KR20070018295A KR20080078332A KR 20080078332 A KR20080078332 A KR 20080078332A KR 1020070018295 A KR1020070018295 A KR 1020070018295A KR 20070018295 A KR20070018295 A KR 20070018295A KR 20080078332 A KR20080078332 A KR 20080078332A
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KR
South Korea
Prior art keywords
air
temperature
outside
indoor
indoor air
Prior art date
Application number
KR1020070018295A
Other languages
Korean (ko)
Inventor
김영근
Original Assignee
김영근
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 김영근 filed Critical 김영근
Priority to KR1020070018295A priority Critical patent/KR20080078332A/en
Publication of KR20080078332A publication Critical patent/KR20080078332A/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/0001Control or safety arrangements for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation, e.g. by means of wall-ducts or systems using window or roof apertures
    • F24F7/04Ventilation, e.g. by means of wall-ducts or systems using window or roof apertures with ducting systems also by double walls; with natural circulation
    • F24F7/06Ventilation, e.g. by means of wall-ducts or systems using window or roof apertures with ducting systems also by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature

Abstract

An air conditioning system is provided to enhance heat exchange efficiency by selectively using indoor air and outdoor air as intake air. An air conditioning system comprises a heat exchanger(100), an outdoor air intake unit(200) transferring outdoor air to the heat exchanger, an indoor air intake unit(300) transferring indoor air to the heat exchanger, an indoor air supply unit(500), a temperature detection unit(600), and a control unit(700). The control unit controls the outdoor air intake unit and the indoor air intake unit. Outdoor air is introduced to the heat exchange if a set temperature ranges between an indoor air temperature and an outdoor air temperature, and air having a temperature adjacent to the set temperature is introduced to the heat exchanger if not.

Description

Air Conditioning System

1 is a block diagram of an air conditioning system according to the present invention.

2 is a flowchart of an air conditioning system according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: heat exchanger 200: outside air inlet

300: indoor air inlet 400: indoor air outlet

500: indoor air supply unit 600: temperature detection unit

700: control unit

The present invention relates to an air conditioning system for cooling or heating indoor air, and more particularly, to an air conditioning system configured to minimize energy required for cooling or heating air by using outdoor air.

In general, an air conditioner is a cooling / heating system that cools a room by a repetitive action of inhaling hot air in a room, exchanging heat with a low temperature refrigerant, and then discharging it into the room. -Condenser-Expansion valve-Evaporator which forms a series of cycles.

At this time, the conventional air conditioner, such as to suck the heat of the indoor air and then to recycle it back to the room or to suck the outside air and heat exchange after supplying it to the room, that is, the air to be heat exchanged in the indoor air and outside air It is configured to choose either. Therefore, the user selects a method of recirculating the indoor air when the indoor air is clean, and by selecting a method of sucking the outside air and supplying the indoor air when the indoor air is contaminated, thereby effectively realizing air conditioning.

However, the conventional air conditioner configured as described above simply selects the air to be inhaled according to the user's operation as either indoor or outdoor air, and has no function to consider the surrounding environment. There is a problem that very inefficient cases occur frequently.

For example, when the indoor air is to be cooled in an environment where the outside air temperature is lower than the indoor air, it is more efficient to suck and cool the outside air than to suck and cool the indoor air. However, if the indoor air is manipulated to be sucked into the heat exchanger, there is a problem that only the indoor air can be sucked and cooled, so that air cooling is very inefficient.

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide an air conditioning system configured to automatically select intake air as the heat exchange efficiency increases according to the temperature of indoor air and outdoor air.

Air conditioning system according to the present invention for achieving the above object,

A heat exchanger for cooling or heating the supplied air to a set temperature;

An outside air inlet unit for introducing outside air and transferring the same to the heat exchanger;

An indoor air inlet unit for introducing indoor air and transferring it to the heat exchanger;

An indoor air supply unit supplying air cooled or heated by the heat exchanger to the room;

A temperature sensor for detecting an outside temperature and an indoor air temperature; And

If the set temperature is between the indoor air temperature and the outside air temperature, outside air flows into the heat exchanger, and if the set temperature is outside the area between the indoor air temperature and the outside air temperature, air close to the set temperature of the outside air and indoor air is transferred to the heat exchanger. A controller for controlling the operation of the outside air inlet and the indoor air inlet to be introduced;

It is configured to include.

The control unit,

If the set temperature is between the outside temperature and the room air temperature,

And open the outside air inlet to allow outside air to flow in, and to turn off the operation of the heat exchanger.

It further includes an indoor air discharge unit for discharging the indoor air to the outside when the outside air is introduced.

The indoor air discharge unit is coupled to communicate with the indoor air inlet and the air flow path.

The outside air inlet, indoor air inlet and indoor air outlet,

One or more blowers are provided.

It further includes a display lamp for indicating which air of the indoor air and the outside air is introduced, and whether the heat exchanger is operating.

Hereinafter, embodiments of the air conditioning system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an air conditioning system according to the present invention.

As shown in FIG. 1, the air conditioning system according to the present invention includes a heat exchanger 100 that cools or heats the supplied air to a set temperature, and an outdoor air inlet that receives outside air and delivers the air to the heat exchanger 100. (200), the indoor air inlet 300 for introducing indoor air to the heat exchanger 100 and the indoor air supply unit for supplying the air cooled or heated by the heat exchanger 100 to the room ( 500, a temperature sensing unit 600 for sensing the outside air temperature and the indoor air temperature, and a control unit for controlling the operation of the outside air inlet 200 and the indoor air inlet 300 according to the indoor air temperature and the outside air temperature. And 700. For reference, in the block diagram shown in FIG. 1, a solid line shows a path for transmitting an electrical signal, and a dotted line shows an air flow path.

The heat exchanger 100 is a device for cooling the supplied air when the supplied air is hotter than the set temperature, and heating the supplied air when the supplied air is colder than the set temperature. It is configured to have the function of a heater at the same time. In this case, when the air conditioning system according to the present invention is used only for cooling the indoor air, the heat exchanger 100 may be configured to have only a function of a cooler, and the air conditioning system according to the present invention is for heating the indoor air. When used only as the heat exchanger 100 may be configured to have only the function of a heater.

The heat exchanger 100 for cooling or heating the air supplied as described above may be implemented as a structure that can cool and heat the supplied air, as well as the structure of any cooler and heater used up to now. have. The cooler and the heater are currently implemented in various ways and commercialized, detailed structure and operation thereof will be omitted.

The outside air inlet 200 includes an outside air duct, one end of which is exposed to the outside air and the other end of which communicates with the heat exchange unit 100, and an outside air damper that opens and closes an internal flow path of the outside air duct.

The indoor air inlet 300 includes an indoor inlet duct whose one end is exposed to indoor air and the other end communicates with the heat exchange part 100, and an indoor inlet damper that opens and closes an internal flow path of the indoor inlet duct. do.

At this time, the external air damper and the indoor inlet damper may be applied to any structure as long as it can open and close the internal flow path of the external air duct and the indoor inlet duct. In addition, the outside air inlet 200 and the indoor air inlet 300 may be further provided with a separate blower, respectively, in order to increase the amount of air introduced into one end and delivered to the heat exchange unit 100. .

The controller 700 cools or heats the air supplied to the heat exchanger 100 so as to adjust the indoor air temperature to the set temperature, and any air of the outside air and indoor air flows into the heat exchanger 100. It is configured to determine whether it is most efficient to control the operation of the outside air inlet 200 and the indoor air inlet 300.

That is, the control unit 700 compares the outdoor air temperature and the indoor air temperature received from the temperature sensing unit 600 with a preset temperature (user desired room air temperature) set by the user in advance, and the set temperature is indoor air. When the temperature is between the outside air temperature and the outside air is introduced into the heat exchanger 100, when the set temperature is in the outer region between the indoor air temperature and the outside air temperature, the air close to the set temperature of the outside air and indoor air is the heat exchanger ( 100 to control the operation of the outside air inlet 200 and the indoor air inlet 300 to flow into.

For example, when indoor air is 20 ° C., outside air is 10 ° C., and a desired room temperature is desired by the user, that is, the set temperature is 15 ° C., the controller 700 controls the outside air to supply the outside air to the heat exchanger 100. The inlet unit 200 is operated and the indoor air inlet unit 300 is turned off so that the indoor air is not supplied to the heat exchanger 100. When cold outside air flows in this way, the indoor air can be lowered to a set temperature even if the heat exchanger 100 is not operated, thereby significantly lowering the amount of energy used in the air conditioning system.

In addition, when indoor air is 20 ° C., outdoor air is 30 ° C., and the set temperature is 15 ° C., the control unit 700 may supply the indoor air to the heat exchanger 100 so that indoor air having a small temperature difference from the set temperature is supplied to the heat exchanger 100. 300 is operated, and the outside air inlet 200 is turned off so that outside air having a large set temperature and a temperature difference is not supplied to the heat exchanger 100. As such, when only indoor air having a relatively small temperature difference from the set temperature is supplied to the heat exchanger 100, the air supplied to the heat exchanger 100 is supplied to the heat exchanger 100 as compared with the case where the outside air having a large temperature difference is supplied to the heat exchanger 100. The advantage is that the amount of energy used to cool the air to the set temperature is reduced.

On the contrary, the controller 700 may reduce energy usage for heating the air supplied to the heat exchanger 100 even when the indoor air is to be heated.

For example, when indoor air is 10 ° C., outside air is 20 ° C., and the set temperature is 15 ° C., the controller 700 operates the outside air inlet 200 so that outside air is supplied to the heat exchanger 100. The indoor air inlet 300 is turned off so that indoor air is not supplied to the heat exchanger 100. As such, when warm outside air is introduced, the indoor air can be raised to a set temperature even if the heat exchanger 100 is not operated, thereby significantly lowering the amount of energy used in the air conditioning system.

In addition, when indoor air is 10 ° C., outside air is 5 ° C., and the set temperature is 15 ° C., the control unit 700 is configured to supply the indoor air to the heat exchanger 100 so that indoor air having a small temperature difference is smaller than the set temperature. 300 is operated, and the outside air inlet 200 is turned off so that outside air having a large set temperature and a temperature difference is not supplied to the heat exchanger 100. As such, when only indoor air having a relatively small temperature difference from the set temperature is supplied to the heat exchanger 100, the air supplied to the heat exchanger 100 is supplied to the heat exchanger 100 as compared with the case where the outside air having a large temperature difference is supplied to the heat exchanger 100. The advantage is that the amount of energy used to heat the air to the set temperature is reduced.

The air conditioning system according to the present invention may be configured to further include an indoor air discharge unit 400 for discharging the indoor air to the outside when the outside air is introduced. The indoor air discharge unit 400 is a configuration for discharging indoor contaminated air to the outside, and when the indoor air is circulated by the indoor air inlet 300, the indoor air amount may be excessively reduced. , When air is introduced from the outside, that is, configured to be operated when the outside air is introduced from the outside air inlet 200.

At this time, the indoor air discharge unit 400 is coupled to communicate with the indoor air inlet 300 and the air flow path for sucking the indoor air, it is preferable to be configured to more effectively discharge the indoor air to the outside.

In addition, the air conditioning system according to the present invention may further include a display lamp indicating which air of indoor air and outdoor air is introduced and indicating whether the heat exchanger 100 is operated. When the display lamp is added in this way, the user can easily recognize which air is introduced into the indoor air and outside air and whether the heat exchanger 100 is normally operated. There is an advantage of being simpler.

2 is a flowchart of an air conditioning system according to the present invention.

Referring to the operation sequence of the air conditioning system according to the present invention.

By detecting whether the indoor air temperature is out of the set temperature range (S11), if the indoor air temperature is within the set temperature range, the indoor air temperature detection is repeated until the indoor air temperature is out of the set temperature range, and the indoor air temperature is set temperature. If it is out of the range to detect whether the indoor air temperature is higher than the set temperature (S12), that is, go to the step of detecting whether cooling or heating is required.

If the indoor air temperature is higher than the set temperature and cooling is required, compare the outside temperature with the set temperature (S13) and if the outside temperature is lower than the set temperature, after introducing the outside air (S14), the supplied outside air is supplied to the room as it is ( S15). In this way, when the outdoor air at a temperature lower than the set temperature is introduced, since the indoor air temperature can be lowered to the set temperature even if the heat exchanger 100 is not operated, the energy consumption is almost eliminated.

If the outside air temperature is higher than the set temperature in the step (S13) of comparing the outside temperature and the set temperature, the indoor air temperature and the outside temperature are compared (S21). At this time, when the indoor air temperature is lower than the outside temperature, the indoor air is introduced into the heat exchanger 100 to cool the indoor air (S22), and the cooled indoor air is recycled to the room (S23). On the contrary, if the outside air temperature is lower than the indoor air temperature in the step S21 of comparing the indoor air temperature with the outside air temperature, after cooling the air by introducing it into the heat exchanger 100 (S31), the cooled outside air is supplied into the room. (S32). That is, the air conditioning system according to the present invention has the advantage of reducing the energy required during cooling because it is used for cooling the room by cooling the cool air in the indoor air and outside air.

In addition, when the indoor air temperature is lower than the set temperature in the step S12 of comparing the indoor air temperature with the set temperature, and heating is required, the outdoor air is introduced when the outside air temperature is higher than the set temperature (S41). After (S42), the supplied outside air is supplied into the room as it is (S43). In this way, when the outdoor air having a temperature higher than the set temperature is introduced, the indoor air temperature can be increased to the set temperature even if the heat exchanger 100 is not operated, and thus the energy consumption is almost eliminated.

When the outside air temperature is lower than the set temperature in the step (S41) of comparing the outside temperature and the set temperature, the indoor air temperature and the outside air temperature are compared (S51). At this time, when the indoor air temperature is higher than the outside temperature, indoor air is introduced into the heat exchanger 100 to heat the indoor air (S52), and the heated indoor air is recycled to the room (S53). On the contrary, if the outside air temperature is higher than the indoor air temperature in the step S51 of comparing the indoor air temperature and the outside air temperature, the outside air is introduced into the heat exchanger 100 and heated (S61), and the heated outside air is supplied into the room. (S62). That is, the air conditioning system according to the present invention has the advantage of reducing the energy required when heating because it is used for indoor heating by heating warm air in the indoor air and outside air.

As mentioned above, although this invention was demonstrated in detail using the preferable embodiment, the scope of the present invention is not limited to a specific embodiment, Comprising: It should be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

The air conditioning system according to the present invention can cool or heat a room simply by introducing external air without using a heat exchanger 100, and according to the temperature of indoor air and outdoor air even when the heat exchanger 100 must be used. The heat exchange efficiency is increased, and the intake air is automatically selected to minimize the energy required for cooling or heating.

Claims (6)

  1. A heat exchanger 100 for cooling or heating the supplied air to a set temperature;
    An outside air inlet unit 200 which introduces outside air and delivers the same to the heat exchanger 100;
    Indoor air inflow unit 300 for introducing the indoor air to pass to the heat exchanger (100);
    An indoor air supply unit 500 for supplying air cooled or heated by the heat exchanger 100 to the room;
    A temperature sensing unit 600 for sensing the outside air temperature and the indoor air temperature; And
    When the set temperature is between the indoor air temperature and the outside air temperature, outside air flows into the heat exchanger 100, and when the set temperature is outside the area between the indoor air temperature and the outside air temperature, the air close to the set temperature of the outside air and the indoor air. A controller 700 for controlling the operation of the outside air inlet 200 and the indoor air inlet 300 such that the air is introduced into the heat exchanger 100;
    Air conditioning system, characterized in that configured to include.
  2. The method of claim 1,
    The control unit 700,
    If the set temperature is between the outside temperature and the room air temperature,
    The air conditioning system, characterized in that configured to open the outside air inlet 200 so that outside air flows in, and to turn off the operation of the heat exchange unit (100).
  3. The method according to claim 1 or 2,
    Air conditioning system further comprises an indoor air discharge unit 400 for discharging the indoor air to the outside when the outside air is introduced.
  4. The method of claim 3,
    The indoor air discharge unit 400, the air conditioning system, characterized in that coupled to the indoor air inlet 300 and the air flow path in communication.
  5. The method of claim 3,
    The outside air inlet 200, the indoor air inlet 300 and the indoor air outlet 400,
    An air conditioning system comprising at least one blower.
  6. The method according to claim 1 or 2,
    An air conditioning system, characterized in that it further comprises a display lamp for indicating whether the air of the indoor air and the outside air is introduced, and whether the heat exchanger (100) operating.
KR1020070018295A 2007-02-23 2007-02-23 Air-conditioning system KR20080078332A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102141278A (en) * 2010-01-29 2011-08-03 Gac株式会社 Air conditioning system
CN102313336A (en) * 2011-09-30 2012-01-11 芜湖博耐尔汽车电气系统有限公司 Automatic constant-temperature control method for automotive air conditioning controller
KR101256367B1 (en) * 2012-12-21 2013-04-25 주식회사 삼화에이스 Air conditioning system using outdoor air
KR101368338B1 (en) * 2012-04-10 2014-02-27 김해중 A Cooling Apparatus using Outdoor Air
CN104990229A (en) * 2015-07-28 2015-10-21 广东美的暖通设备有限公司 Air conditioning system and control method thereof
CN105091191A (en) * 2014-05-07 2015-11-25 珠海格力电器股份有限公司 Air conditioning unit load control method and device
KR101952654B1 (en) * 2017-09-05 2019-02-27 (주) 파루 Air conditioner including heating material using exothermic ink composition
KR102023708B1 (en) 2019-04-23 2019-09-20 정광천 Auto supply machine for egg packing plate cover and egg packing plate packing system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102141278A (en) * 2010-01-29 2011-08-03 Gac株式会社 Air conditioning system
CN102313336A (en) * 2011-09-30 2012-01-11 芜湖博耐尔汽车电气系统有限公司 Automatic constant-temperature control method for automotive air conditioning controller
KR101368338B1 (en) * 2012-04-10 2014-02-27 김해중 A Cooling Apparatus using Outdoor Air
KR101256367B1 (en) * 2012-12-21 2013-04-25 주식회사 삼화에이스 Air conditioning system using outdoor air
CN105091191A (en) * 2014-05-07 2015-11-25 珠海格力电器股份有限公司 Air conditioning unit load control method and device
CN105091191B (en) * 2014-05-07 2018-01-05 珠海格力电器股份有限公司 The control method and device of air-conditioner set load
CN104990229A (en) * 2015-07-28 2015-10-21 广东美的暖通设备有限公司 Air conditioning system and control method thereof
KR101952654B1 (en) * 2017-09-05 2019-02-27 (주) 파루 Air conditioner including heating material using exothermic ink composition
KR102023708B1 (en) 2019-04-23 2019-09-20 정광천 Auto supply machine for egg packing plate cover and egg packing plate packing system

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